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ICS9EX21801A Datasheet(PDF) 1 Page - Integrated Device Technology

Part # ICS9EX21801A
Description  18 Output PCIe G2/QPI Differential Buffer with 2:1 input mux
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

ICS9EX21801A Datasheet(HTML) 1 Page - Integrated Device Technology

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ICS9EX21801A
IDTTM
18 Output PCIe G2/QPI Differential Buffer with 2:1 input mux
1463B — 01/20/10
18 Output PCIe G2/QPI Differential Buffer with 2:1 input
mux
DATASHEET
1
Description
The ICS9EX21801 provides 18 output clocks for PCIe Gen2
(100MHz) or QPI (133MHz) applications. The 9EX21801 has 4
selectable SMBus addresses, and dedicated CKPWRGD/PD#
and VDDA pins for easy board design. A differential CPU clock
from a CK410B+ main clock generator, such as the ICS932S421,
drives the ICS9EX21801. In fanout mode, the 9EX21801 provides
outputs up to 400MHz.
Key Specifications
DIF output cycle-to-cycle jitter < 50ps
DIF output-to-output skew < 150 ps
PCIe Gen2 compliant phase noise
QPI 133MHz compliant phase noise
Features/Benefits
Supports output clock frequencies up to 400 MHz
4 Selectable SMBus addresses
SMBus address is independent of PLL operating mode
Dedicated CKPWRGD/PD# and VDDA pins ease board
design
Funtional Block Diagram
CLKA_IN
CLKA_IN#
DIF(17:0)
HIBW_BYPM_LOBW#
SEL_A_B#
SMBDAT
SMBCLK
CKPWRGD/PD#
18
IREF
OE(17:15)#
OE(14:5)#,
OE_01234#
12
SMB_A0
SMB_A1
100M_133M#
CLKB_IN
CLKB_IN#
PLL
(SS Compatible)
Logic


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